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2-4. Using other driving systems
NOTICE
■When using intuitive parking assist
In the following situations, the system may not function correctly due to a sensor 
malfunction etc. Have the vehicle checked by your Lexus dealer.• A beep does not sound when you turn the main switch ON.
• The intuitive parking assist operation  display flashes, and a beep sound when 
no obstacle has  been detected.
• If the area around a sensor collides with  something, or is subjected to strong 
impact.
• If the bumper collides with something.
• If the display shows continuously without a beep.
■When changing tires
If you install tires of a size other than that recommended by the manufacturer, the 
system will be unable to correctly detect steering wheel movement. Always use tire 
sizes recommended by the manufacturer.
■When washing the vehicle
When washing the vehicle using high pressure cleaning equipment, do not spray 
water directly on the sensors. Subjecting the sensors to high pressure impact may 
cause a malfunction.